| Make | Model | Problem | Solution | Date |
| | | |
| Found: 76
|
| Aiwa | VTV CTV/VCR | Dead | R 519 100k STARTUP CIRCUIT. HT SUPPLY ( 103v ) VIA THIS CIRCUIT. SIMILAR TO ORION VTV. | 14-09-04 |
| BPL | 9002ECR | Hissing from LOPTx & HT low at 75v | C561 220µ 250v HT res cap | 14-09-04 |
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| BPL | 9002ECR | Patterning on pic | C562 22µ 250v | 14-09-04 |
| BPL | 9002ECR Mk2 | Dead - caps in psu sec had blown up | Hi HT - change Q511 2SA1015 , R552 91k, R555 47k & opto coupler | 14-09-04 |
| Crown | 11AK08 CRV37 | Dead with BUZ77 chopper Q801 s/c | R809, R805 330k & check/change C817, C831 1µ 50v & C812 47µ 16v | 14-09-04 |
| Crown | CR3797R | Dead with squeal | C612 22µ 50v & C611 47µ 40v hi esr, 2SD5071 LOPTr leaky used 2SD1651 in lieu, line dr tr 2SC2330 s/c now would work except CRT is soft! Used 2nd hand crt to complete repair & replace C319 with 4n7 2kv to increase width | 14-09-04 |
| Crown | CR5014 | Dead - Chopper tr BUT11AF Q101 s/c | R121 3R3 ?w fusible o/c - D108 dry joints | 14-09-04 |
| Crown | CRP14 Matsui 2096 | Child Lock removal | Connect a tact switch between pin 4 & 17 of IC1 (in r/c) . When TV is sw on via R/C & a chan is selected that has a PASS code no. (child lock) will allow access approx 1 sec after pressing the tact switch once. The pass channel will clear & pic will return. To remove child lock permanently press tact switch again a message "PASS CLEAR" will appear on screen | 14-09-04 |
| Crown | CRP14/21 | Dead R599 2k 5w o/c | Caused by line dr trfmr CROW602300033051 & replace line dr Tr | 14-09-04 |
| Crown | CRP14T SM1 Mono | Stuck in standby. | R599 2k 5watt in PSU o/c , check Q579. | 14-09-04 |
| Crown | CRP21 | Child lock removal | s/c pins 4 & 17 of R/C. Press 'clear' then 'pass'. S/C pins again twice. To clear press 'clear'. | 14-09-04 |
| Crown | CRP21T | dead | R599 2k 5w - replace Q579 too | 14-09-04 |
| Crown | CRP21T | dead | Q101 BUZ77 FET chopper s/c, R101 5R6 5w o/c, R108 220k, R109 330k hi res. Also check chopper tfmr for leaky feedback windings + TDA4605 | 14-09-04 |
| Crown | CRP21T | Dead Q101 PSU Chopper s/c | R108 220k & R109 330k hi res | 14-09-04 |
| Crown | CRP21T | int dead | 2SC1573A line driver Q579 (may check ok) | 14-09-04 |
| Crown | CRP21T | Int symbols showing when Micro & Xtal fitted with blank raster | Fit D483 in its posn between micro & tuner/IF (No diode previously fitted) | 14-09-04 |
| Crown | CRP21T | No signals | R127 12k o/c | 14-09-04 |
| Crown | CRP21T | Pass Code - resetting | open hset if SAA3004P s/c pins 2+18; if KS51900-43 or OHS2015DN s/c pins 18 + D6; if GMS30150 9514 s/c pins 4&17. Sw on tv, press chan button so PASS displayed, insert R/C batts & point at tv. PASS CLEAR appears on tv. Remove R/C s/c to end set up. | 14-09-04 |
| Crown | CRP21T SM1 Mono | Stuck in standby. | R599 2k 5watt in PSU o/c , check Q579. | 14-09-04 |
| Crown | CRP21T(S) | Dead - internal fuse intact (due to power surge) | Q101 BUZ90F, IC104 TDA4605 & R101 5R6 5w | 14-09-04 |
| Crown | CRP25NT | E/W corr faulty | Q579 | 14-09-04 |
| Crown | CRT5912RT | Dead - LOPTr faulty | replacement ran hot - 10µ 50v cap in base faulty | 14-09-04 |
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| Crown | CRV37 | Dead | Q801 R805 R803 R809(.47 OHM FUSIBLE) IC 801 | 14-09-04 |
| Crown | CRV37 | Streaky pic, dark on LH, bright on RH | C608 1µ 250v decoupler | 14-09-04 |
| Crown | CRV37 | Tripping | Chopper tfmr | 14-09-04 |
| Crown | CRV47 | Dead | R809 0R47 o/c, Chopper tfmr s/c under load tho' measured ok | 14-09-04 |
| Goldstar | KBV-9012E TV/VCR Combo | White raster with retrace lines, the set switches off after a while. L901 (in series with +180V supply to RGB trs) oc, the +180V winding of Loptx delivers 300V!! (Di&smooth.Cap OK) | Replace C820 10uF/160V cap. Note that +180V supply delivers 300V, while +B and all other voltages are normal. Seems to be a weird LOPTx fault, but it was C820 instead. | 14-09-04 |
| Goldstar | KBV-9012E TV/VCR Combo | White raster with retrace lines, the set switches off after a while. L901 (in series with +180V supply to RGB trs) oc, the +180V winding of Loptx delivers 300V!! (Di&smooth.Cap OK) | Replace C820 10uF/160V cap. Note that +180V supply delivers 300V, while +B and all other voltages are normal. Seems to be a weird LOPTx fault, but it was C820 instead. C820 IS NOT the smoothing cap for +180V. | 14-09-04 |
| Orion | 14PCR | Int tuning & no chan 4 | Dry joints tuner - esp earths | 14-09-04 |
| Orion | 2093SCR | St/by aft 10 secs - tape was stuck in | "Wire link" JP001 o/c - turns out to be a wired in 2A fuse | 14-09-04 |